Cooling system for internalcombustion engines



July 25, 1950 GlNN COOLING SYSTEM FOR INTERNAL-COMBUSTION ENGINES 3 Sheets-Sheet 1 Filed June 28, 1945 u l 75m? Gomwwax- 7/7 raffle Can 617/ IN VENTOR. Earl 60in July 25, 1950 E. GINN 2,516,312

CQOLING SYSTEM FOR INTERNAL-COMBUSTION ENGINES Filed June 28, 1945 3 Sheets-Sheet 2 I NVENTOR. Earl 6/0 July 25, 1950 E. GlNN 2,516,312

COOLING SYSTEM FOR INTERNAL-COMBUSTION ENGINES Filed June 28, 1945 3 Sheets-Sheet 3 INVENTOR. Ear/ G/fl/z Patented July 25, 1950 COOLING SYSTEM on INTERNAL- COMBUSTION ENGINES I Earl Ginn, North Muskegon, Mich., assignorto Continental Motors. Corporation, Muskegon, Mich., a corporation of Virginia Application June as, 1945, Serial No. 601,981

gines has been ever present since the introduction of such engines. Whether the cooling system is one involving use of air or water, constant efforts have been made to improve the efiectiveness thereof.

It is an object of the present invention to provide a design for an internal combustion engine which not only may be more readily cooled but which in being so designed is more compact.

Another object of the invention is the provision of an air flow control to direct cooling air most advantageously to the portions of the engine needing cooling.

Other objects and features of the invention relating to details of construction and operation will be evident in the ensuing description and appended claims.

For a more detailed understanding of my invention, reference may be had to the accompanying drawings illustrating preferred embodiments of my invention, like parts of which are referred to by like characters throughout the specification and in which:

Fig. 1 shows an elevation of the flywheel side of a single cylinder engine and generator combination,

Fig. 2 is an elevation of the reverse side of the engine showing the driving wheel and a portion of the air shroud,

Fig. 3 is a plan view of the engine and generator combination,

Fig. 4 is an end view of the engine, and

Fig. 5 is a sectional view of the engine taken on the line 5-5 of Fig. 3.

A generator, the housing I!) of which is shown in Fig. 3, has pulley wheel ll driven by belts l2 running from drive wheel l3. Drive wheel I3 is located on the end of crankshaft H of a single cylinder four stroke cycle internal combustion engine IS. The engine housing or crankcase I6 is suitably mounted on pads IT. A fuel tank l8 supplies gasoline to a carburetor 19. A magneto 20 suitably driven furnishes the ignition current for sparkplug 2|.

A governor throttle control is shown at 22.

The finned cylinder 30 of the engine projects vertically above the crankcase l6. Valves 3| and 32 are intake and exhaust valves, respectively, mounted in the same casting with the power cylinder but it will be noted that the plane of the valves is perpendicular to the crankshaft as is internalcombusa flywheel 40 having air driving blades 4|.

'3 Claims. (01. 1231- 11) arse the as shaft 35 which drives the valves in a wormgear connection with the crankshaft.

Ihe cylinder head 36 is likewise provided with parallel fins 31 extending across the cylinder in line-with the crankshaft l4.

At. the left end of crankshaft [4 (see Fig. 5) is The flywheel end of the engine is shrouded by a formed housing 42 which has an air inlet opening 43. The housing projects upward and over the cylinder 39 passing around the cylinder fins at least degrees in a. portion 44. This leaves the opening shown in Figs. 2 and 4 for the outlet of air.

Within the shroud a diversion plate 48 is provided which terminates at the junction 49 of the valve housing and cylinder head 36. A guard 50 forms the other side of a passage A leading directly from fan wheel 40 past the valves 3| and 32. A passage B leads directly to the finned cylinder head where a volume of air passes before flowing down and out the opening provided.

It will thus be seen that by placing the valves in a position to meet oncoming air to the cylinder, 2. dual purpose is accomplished; the valves are cooled, the cylinder and head are cooled. No less important is the fact that the change in engine design to accomplish this purpose has created a more compact engine with the cam shaft space being utilized from previously wasted space in the engine housing.

It will be apparent to those skilled in the art to which my invention pertains, that various modifications and changes may be made therein without departing from the spirit of my invention or from the scope of the appended claims.

I claim:

1. A self-cooling internal combustion engine comprising a crankcase, a finned engine cylinder and a finned cylinder head, a crankshaft supported by said crankcase, intake and exhaust valves for said cylinder positioned adjacent the front end of said engine in a plane normal to said crankshaft and supported by the cylinder, an air moving device externally of said crankcase at the front end of said engine and comprising a blower mounted on the crankshaft and a blower housing enclosing said blower and having a discharge opening adjacent the engine cylinder, and a partition in said blower housing and forming separate air passages extending directly from said blower to the discharge opening, thereby providing separate passages flowing separate streams of cooling air for respectively circulating over the tion enclosing said air moving device and a secnd shroud portion enclosing said valve housing and finned cylinder and cylinder head;, said sec.- ond shroud portion enclosing said cylinder head;

and a major portion of said cylinder and having an outlet opening on the side of said cylinder opposite said valves, and provided with an air. :inlet opening on the valve side of said cylinder, :and means within said first shroud portionvpro viding separate air passages for respectively. directing a portion of air; to and around said'valve's, :and a portion of air to and over said cylinder ihe'ad.

v 3. man internal combustion engine having a t'finned cylinder and cylinder-head; an air moving devicedrivenby said engine valves mounted in a housing adjacent said cylinder below said" head fin a plane-normal co-the crankshaft ofsaid en- Eg'ine, an air coolingshroud comprising a first :sh'roud portion enclosing said air moving device anda second-shroud portion enclosing saidvalve L housing, the second shroud portion enclosing said 4 cylinder head and a major portion of said cylinder having an outlet opening on the side of said cylinder opposite said valves, and provided with an air inlet opening on the valve side of the cylinder communicating with said first shroud portion, and means within said first shroud portion providingis'eparate air passages for directing respectively a portiomof air to-and around said valves,

and a portion of air to and over said cylinder head, said air moving means mounted at the end of and driven by said crankshaft for passing air through: said air passages.

EARL GINN.

REFERENCE S CITED The following references are of record in the file of patent: v

UNITED STATES PATENTS 

